JP3109461B2 - ローパスフィルタ - Google Patents
ローパスフィルタInfo
- Publication number
- JP3109461B2 JP3109461B2 JP09244134A JP24413497A JP3109461B2 JP 3109461 B2 JP3109461 B2 JP 3109461B2 JP 09244134 A JP09244134 A JP 09244134A JP 24413497 A JP24413497 A JP 24413497A JP 3109461 B2 JP3109461 B2 JP 3109461B2
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- input terminal
- input
- signal
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
- H03H11/126—Frequency selective two-port networks using amplifiers with feedback using a single operational amplifier
Landscapes
- Networks Using Active Elements (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP09244134A JP3109461B2 (ja) | 1997-09-09 | 1997-09-09 | ローパスフィルタ |
EP98117001A EP0902535B1 (de) | 1997-09-09 | 1998-09-08 | Tiefpassfilter mit Summierfunktion |
DE69836362T DE69836362T2 (de) | 1997-09-09 | 1998-09-08 | Tiefpassfilter mit Summierfunktion |
US09/150,298 US6369645B1 (en) | 1997-09-09 | 1998-09-09 | Low-pass filter with a summing function |
CNB981176887A CN1144365C (zh) | 1997-09-09 | 1998-09-09 | 具有加法效应的低通滤波器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP09244134A JP3109461B2 (ja) | 1997-09-09 | 1997-09-09 | ローパスフィルタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1188114A JPH1188114A (ja) | 1999-03-30 |
JP3109461B2 true JP3109461B2 (ja) | 2000-11-13 |
Family
ID=17114275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP09244134A Expired - Fee Related JP3109461B2 (ja) | 1997-09-09 | 1997-09-09 | ローパスフィルタ |
Country Status (5)
Country | Link |
---|---|
US (1) | US6369645B1 (de) |
EP (1) | EP0902535B1 (de) |
JP (1) | JP3109461B2 (de) |
CN (1) | CN1144365C (de) |
DE (1) | DE69836362T2 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002150675A (ja) | 2000-11-06 | 2002-05-24 | Sony Corp | 記録装置及び方法、再生装置及び方法、並びに記憶媒体 |
TW586264B (en) * | 2003-04-14 | 2004-05-01 | Realtek Semiconductor Corp | Amplifying circuit |
US20040251988A1 (en) * | 2003-06-16 | 2004-12-16 | Manish Sharma | Adjustable phase change material resistor |
TW595091B (en) * | 2003-09-08 | 2004-06-21 | Realtek Semiconductor Corp | Low pass filter |
US20050151576A1 (en) * | 2003-09-23 | 2005-07-14 | Chao-Cheng Lee | Adjustable impedance circuit |
TWI257767B (en) * | 2005-03-03 | 2006-07-01 | Realtek Semiconductor Corp | Filtering device having multiple inputs and multiple feedback paths |
US7268718B1 (en) * | 2006-07-17 | 2007-09-11 | Fortemedia, Inc. | Capacitor-based digital-to-analog converter for low voltage applications |
WO2010038331A1 (ja) | 2008-09-30 | 2010-04-08 | パナソニック株式会社 | 共振器およびオーバーサンプリングa/d変換器 |
US8120417B2 (en) * | 2009-07-20 | 2012-02-21 | Texas Instruments Incorporated | Transfer-function control in an active filter |
US8901995B2 (en) * | 2010-11-10 | 2014-12-02 | Texas Instruments Incorporated | Active low pass filter |
CN103248336B (zh) * | 2012-02-09 | 2016-04-06 | 联发科技股份有限公司 | 滤波器 |
US10056915B2 (en) * | 2015-07-16 | 2018-08-21 | Semiconductor Components Industries, Llc | Digital-to-analog converter |
US10340891B1 (en) * | 2017-12-19 | 2019-07-02 | Quantenna Communications, Inc. | Differential elliptic filter with a single op-amp |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3784924A (en) * | 1972-01-31 | 1974-01-08 | Us Navy | Multi-input loop filter with independent bandwidth and response characteristics |
US3916322A (en) * | 1974-03-13 | 1975-10-28 | Austin W Nelson | Tone synthesizer for electronic musical instruments |
JPS63300613A (ja) | 1987-05-29 | 1988-12-07 | Nec Corp | 能動フィルタ |
JPH01321716A (ja) | 1988-06-23 | 1989-12-27 | Nec Corp | 能動フイルタ |
US5049831A (en) * | 1990-03-29 | 1991-09-17 | Motorola, Inc. | Single-ended input to differential output amplifier with integral two-pole filter |
JPH0746083A (ja) * | 1993-07-27 | 1995-02-14 | Toshiba Corp | 音声合成兼帯域制限回路及び低音増強回路 |
US5418492A (en) * | 1993-10-01 | 1995-05-23 | Industrial Technology Research Institute | Fully differential non-op-amp-based positive feedback BJT biquad filter |
JPH08307204A (ja) | 1995-04-28 | 1996-11-22 | Meidensha Corp | 複数入力フィルタ回路 |
JPH08307205A (ja) | 1995-04-28 | 1996-11-22 | Meidensha Corp | 複数入力フィルタ回路 |
US5614864A (en) * | 1995-09-29 | 1997-03-25 | Rockwell Science Center, Inc. | Single-ended to differential converter with relaxed common-mode input requirements |
KR19980082276A (ko) | 1997-05-02 | 1998-12-05 | 김영환 | 디지탈 비디오 디스크 플레이어(dvdp)의 이퀄라이저 |
-
1997
- 1997-09-09 JP JP09244134A patent/JP3109461B2/ja not_active Expired - Fee Related
-
1998
- 1998-09-08 DE DE69836362T patent/DE69836362T2/de not_active Expired - Fee Related
- 1998-09-08 EP EP98117001A patent/EP0902535B1/de not_active Expired - Lifetime
- 1998-09-09 US US09/150,298 patent/US6369645B1/en not_active Expired - Fee Related
- 1998-09-09 CN CNB981176887A patent/CN1144365C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69836362D1 (de) | 2006-12-21 |
CN1214572A (zh) | 1999-04-21 |
DE69836362T2 (de) | 2007-09-06 |
US6369645B1 (en) | 2002-04-09 |
JPH1188114A (ja) | 1999-03-30 |
CN1144365C (zh) | 2004-03-31 |
EP0902535A3 (de) | 2002-07-17 |
EP0902535A2 (de) | 1999-03-17 |
EP0902535B1 (de) | 2006-11-08 |
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Legal Events
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LAPS | Cancellation because of no payment of annual fees |